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Xi'an Ruichang Electronics, fire broadcast module, public broadcast switching module

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海湾
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ShaanxiXi'an City
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Xi'an Ruichang Electronics Co., Ltd.

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Product Details

一、GST-LD-8305输出模块特点 GST-LD-8305型输出模块用于总线制消防应急广播系统中正常广播和消防广播间的切换。模块在切换到消防广播后自回答,并将切换信息传回火灾报警控制器,以表明切换成功。

 二、GST-LD-8305输出模块主要技术指标 (1)工作电压: 总线电压:总线24V 电源电压:DC24V (2)监视电流: 总线电流≤1mA 电源电流≤3mA (3)动作电流: 总线电流≤3mA 电源电流≤20mA (4)线制: a.与火灾报警控制器采用无极性信号二总线连接,与电源线采用无极性二线制连接 b.可接入二根正常广播线、二根消防广播线及两根音响线 (5)输出容量:接入正常广播时,每只模块最多可配接50个YXG3-3/YXJ3-4A型音箱 不接入正常广播时,每只模块最多可配接60个YXG3-3/YXJ3-4A型音箱 (6)使用环境: 温度:-10℃~+55℃ 相对湿度≤95%,不结露 (7)外壳防护等级:IP30 (8)外形尺寸:86mm×86mm×43mm(带底壳) 

三、GST-LD-8305输出模块结构特征、安装与布线 GST-LD-8305型模块的外形尺寸及结构与GST-LD-8319输入模块相同,安装方法也相同,其对外端子示意图如图7-13: GST-LD-8305切换模块端子图 其中: Z1、Z2:接火灾报警控制器信号二总线,无极性 D1、D2:DC24V电源输入端子,无极性 ZC1、ZC2:正常广播线输入端子 XF1、XF2:消防广播线输入端子 SP1、SP2:与放音设备连接的输出端子 

四、GST-LD-8305输出模块布线要求 :无极性信号二总线采用阻燃RVS双绞线,截面积≥1.0mm2,DC24V电源二总线采用阻燃BV线,截面积≥1.5mm2,正常广播线ZC1、ZC2消防广播线XF1、XF2及放音设备的连接线SP1、SP2均采用阻燃RV线,截面积≥1.0mm2。 注意:如果GST-LD-8305模块接入正常广播线,需要在正常广播线和GST-LD-8305模块之间串接两个250V-22μF双极性铝电解电容器。

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